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Research draft

skin disease

vr.tr.skin-disease · XCT.STA

Let an agent handle skin diseases as classified conditions, give only general information, avoid diagnosis from images or descriptions, and direct people to clinicians.

Thing Registry Cross-cutting context

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle skin diseases as classified conditions, give only general information, avoid diagnosis from images or descriptions, and direct people to clinicians.

A disease or condition affecting the skin, hair or nails, including inflammatory, infectious, genetic and neoplastic conditions such as dermatitis, infestations and skin tumours.

What it is for: Naming skin conditions so they can be diagnosed, treated and prevented.

It can be diagnose it, by a clinician, often a dermatologist; treat and manage it; prevent it, for example by sun protection; screen for skin cancer.

Distinguishing features

Affects skin, hair or nails

Includes infections, inflammation, infestations and tumours

Visual diagnosis by non-clinicians or apps is unreliable

Can have large psychological impact

What it looks like

Rashes, lesions, spots, scaling, blisters or growths; appearance varies with skin tone, and similar-looking conditions can be very different.

How it is recognised

Only clinical examination, sometimes with biopsy, establishes a diagnosis

Appearance differs across skin tones

Changing moles need prompt assessment

Related models

is a kind of - condition

disease

is treated by - dermatology

medicine

is confused with - not all skin changes are disease

cosmetic concern

is caused in some cases by - infestations

insect and mite

In practice

Families and kinds

inflammatory: eczema, psoriasis, dermatitis

infectious and infestations: fungal, bacterial, acariasis

neoplastic: benign and malignant skin tumours

genetic and autoimmune conditions

Identifiers

ICD-11 code chapter 14 codes skin diseases

Standards and regulation

WHO ICD-11

Medical device rules for diagnostic apps

Health data protection law

Failure modes and hazards

Missing melanoma

App or image-based self-diagnosis

Training data biased toward lighter skin

Also called

acarodermatitisgamasoidosisskin neoplasmPlexiform fibrohistiocytic tumorskin benign neoplasmcutaneous fibrohistiocytic neoplasmskin tumor of neural originskin fibrous tissue neoplasmskin tumor of smooth muscle origininherited skin tumorproliferating epidermoid cystReactional keratosistrichilemmomaTrichoadenomaTrichodiscomaepidermal appendage tumorsweat gland neoplasmsebaceous gland neoplasmeyelid neoplasmskin glomangiomadermis tumorbenign dermal neurilemmomabenign neoplasm of sweat glandbenign neoplasm of sebaceous glandbenign epithelial skin neoplasmencephalocraniocutaneous lipomatosisFMDFeyelid seborrheic keratosischerubismRamon syndromeAl Gazali Khidr Prem Chandran syndromeHori's nevuswhealkerosispigmentation disorderescharskin manifestationDermatopolymyositisflavismhyperpigmentation of eyelid

+244

Where this came from

wikidata · CC0 1.0

Also registered as vr.tr.skin-disease

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Classification Which condition.

Codes and categories organise skin diseases.

Code

ICD-11.

Codes

Classification codes.

  1. Which ICD-11 code classifies this condition? provenance
  2. Which category does it belong to? definition

Mimics

Similar-looking conditions.

Differential

Conditions that look similar.

  1. Which conditions look similar but differ? boundary
  2. Why does that matter for care? boundary
Signs and cause What it looks like and why.

Signs vary with skin tone and stage.

Signs

Typical features.

Signs

Typical features.

  1. What are its typical features on different skin tones? definition
  2. Which signs are warning signs? boundary

Cause

Triggers and causes.

Cause

Causes and triggers.

  1. What causes or triggers it? definition
  2. Is it contagious? boundary
Care Getting help.

Diagnosis and treatment belong to clinicians.

Referral

When to see a clinician.

Referral

When to seek care.

  1. Which changes need urgent assessment, such as a changing mole? action
  2. Who should the person see? action

Treatment

Guideline care.

Treatment

Recommended treatments.

  1. What do guidelines recommend? provenance
  2. What should an agent not recommend? boundary
Impact and prevention Living with and preventing it.

Skin conditions affect wellbeing; some are preventable.

Impact

Quality of life.

Impact

Effects on life.

  1. How does it affect daily life and wellbeing? measurement
  2. What support exists? action

Prevention

Sun protection and hygiene.

Prevention

Preventive measures.

  1. Which measures reduce the risk? action
  2. Is screening recommended? provenance

What the second pass must settle

  • Should each skin disease link to ICD-11?
  • How should agents respond to photos of skin lesions?
  • How should skin-tone bias be addressed in resources?